Dbiviitg mechanism fob cakbouatierg-machistes



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FIQE.

CHARLES L. BASTIAN, OF CHICAGO, ILLINOIS.

Application filed April 19, 1915.

To all whom it may concern.

Be it known that I, CHARLES L. BASTIAN, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Driving Mechanism for WCarbonating-Machines, of which the following is a specification.

This invention relates in general to automatic machines for carbonatingliquids and more specifically to the means whereby the prime mover,which furnishes power to the machine, is allowed an appreciable startinginterval before the full load of the machine is applied thereto.

The device is particularly adapted for use in connection withelectrically driven carbonating machines in which current isautomatically supplied to the motor at intervals, after the supply ofcarbonated liquid has been depleted. In such machines, which are nowwell-known in the art, the full current is turned into the motorwhenever it becomes necessary to carbonate additional quantities ofliquid, no provision being made to supply the current gradually by meansof resistance coils following the usual practice. It is wellknown tothose versed in the electrical art that, particularly where alternatingcurrent motors are used, unless a motor of considerably greater powerthan that required for the load is used, the rush of current into themotor in starting is suflicient to dim the lamps in the same circuitnoticeably and to blow the fuses frequently, entailing considerableannoyance and labor. Furthermore, fire underwriters and power companieswill no longer permit the installation of motors under these conditions.Obviously the use of a larger motor involves an unwarranted expense andhence a simple and effective means of relieving the motor in starting isdesirable.

It is the object of my invention to provide a simple mechanismconsisting of a minimum number of relatively inexpensive parts, wherebya motor is automatically relieved from the full load for an appreciableinterval after starting wherein the motor has van opportunity to startand attain consid erable momentum.

A further object of my invention is the provision of an automaticmachine for carbonating liquids in which the load is applied graduallyto a motor, which receives the full current when started.

Specification of Letters Patent.

Patented Aug. 22, 1916.

Serial No. 22,260.

Further objects and advantages of the inventlon will be apparent as itis better understood by reference to the following specificatlon whenread in connection with the accompanying drawing in which Figure 1 is aside elevation of a carbonating machine, showing the means installed forrelieving the motor from the full load when started; Fig. 2 is anenlarged elevation partially in section of the load-relieving means, andFig. 3 is a vertical section on the line 33 of Fig. 2.

Referring to the drawings, 1 indicates the agitating tank of acarbonator, which may i be of any suitable form and construction andprovided with the usual gage glass 2 and pressure indicator 3, suchtanks being wellknown in the art. A shaft 4 extends through the tank,being mounted in suitable stufling boxes in the walls thereof andprovided with agitator blades (not shown). A sprocket 5 is secured toone end of the shaft 2 and is connected to a counter-shaft 6, suitablymounted above the tank 1, by means of a chain 7 disposed about asprocket 8 secured to the shaft 6. A crank disk 6 is secured to theopposite end of the shaft 6 and actuates the piston 7 of a pump 8through the connecting rod 9, one end of which is secured to the crankpin 10 mounted on the disk 6.

Loosely mounted on the shaft 6 is a gear 9 which meshes with a. pinion10 on the shaft 11 of the motor 12, which is supplied with current atintervals through the conductors 18. The gear 9 is provided with a hub14 having a lug or tooth 15 formed integrally therewith and adapted tooperatively engage a lug or tooth 16 formed integrally with the collar17 keyed to the shaft 6. When the lugs 15 and 16 are disposed incooperative relation the-shaft 6 will be driven by the gear 9, which isin turn actuated by the motor 12.

To normally maintain the lugs 15 and 16 in separated relation when themachine is idle I provide a spiral spring 18 secured at its inner end tothe collar 17, fast to the shaft 6, and at its opposite end to a pin 19,mounted in one of the spokes of the gear 9 and disposed in parallelrelation with the shaft 6. The spring 18 tends normally to separate thelugs 15 and 16, as indicated in the drawings, and maintains the lugs inthe positions indicated when the machine is at rest. When the supply ofcarbonated water has been depleted the circuit to the motor 12 isautomatically closed in a manner well-known in the art and the motorstarts to operate. The pressure which the motor 12 must overcome instarting the pump 8 is approximately 200 pounds and if no means forrelieving the motor temporarily from the load is provided a quantity ofcurrent nearly ten times that required to operate the machine when inmotion will be required. As will be noted in Figs. 1 and 2 of thedrawing, the reduction between the pinion 10 and the gear 9 isrelatively great, so that a considerable number of revolutions of theshaft 11 is required to move the gear 10 through a relatively shortdistance. During the starting operation the spring 18 allows aconsiderable movement of the gear 9 before the lugs 15 and 16 engage andthe inertia of the mechanism is gradually overcome, so that, when thelugs 15 and 16 engage, the motor 12 has attained sufficient momentum tosafely take up the full load of the machine and the danger of blowingfuses or otherwise injuring the motor is obviated.

It will be apparent that various changes may be made in the form,construction and arrangement of the parts within the scope of theappended claims without departing from the spirit and scope of theinvention, or sacrificing any of its material advantages, the formhereinbefore described being merely a preferred embodiment thereof.

I claim:

1. In an apparatus for carbonating liquids, the combination of a shaft,a gear loosely mounted on said shaft, a motor for actuating said gear, aclutch element carried by said gear, a complementary clutch elementsecured to said shaft and spaced from said gear longitudinally of saidshaft, and a spring connected at either end to said gear andcomplementary clutch element respectively, whereby said clutch elementsare normally separated When said gear is at rest and said gear isallowed to move through an appreciable distance before said clutchelements engage.

2. In an apparatus for carbonating liquids, the combination of a shaft,a driving member loosely mounted on said shaft, means for actuating saiddriving member, a driven member secured to said shaft and spacedlaterally from said driving member, clutch elements on said driving anddriven members, whereby the latter is positively actuated by the former,and resilient means secured to said members, whereby said elements arenormally separated when said members are at rest and said driving memberis allowed to move through an appreciable distance before said elementsengage.

3. In an apparatus for carbonating liquids the combination of a shaft, agear loosely mounted on said shaft and provided with a hub, a motor foractuating said gear, a clutch element on said hub, a complementaryclutch element secured to said shaft adjacent the hub of said gear, anda spring connected to said gear and complementary clutch element,whereby the clutch element on the hub of said gear is maintained inspaced relation with said complementary clutch element when said gear isat rest and said gear is allowed to move through an appreciable angulardistance before said clutch elements engage.

4. In an apparatus for carbonating liquids, the combination of a shaft,a gear loosely mounted on said shaft and provided with a hub, a motorfor actuating said gear,

a clutch element on said hub, a comple-' CHARLES L. BASTIAN.

Witnesses:

WVM. O. BELT, M. A. KIDDIE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

